Delong, Zopher, House
Why it's listed
Built around 1870 at 348 Glen Street in Glens Falls, this two and one-half story brick house was remodeled for hardware merchant Zopher I. DeLong from an earlier brick and frame structure. It combines Italianate and Second Empire elements, including a mansard roof, a heavy bracketed cornice, ornate drip moldings and lintels, corbeled chimneys, and round and segmental arched windows. The design closely follows pattern-book work by regional architect Marcus F. Cummings, to whom it is attributed. Few Cummings buildings survive in the city, and this is the most ornate and intact of three comparable residences identified in the area. Inside, the parlors, library, dining room and hall keep varnished wood paneling, sliding doors, etched glass transoms, marble mantels, plaster cornices and a three-story central staircase. A 1927 remodeling for Frederick B. Chapman altered the service wing and porches. DeLong served as trustee and president of the village of Glens Falls from 1862 to 1864. The house now operates as a museum.
Significance in brief: The house is presented as a substantial, intact example of transitional Italianate-Second Empire residential design. It closely resembles the pattern-book designs of regional architect Marcus F. Cummings and is the most ornate and intact of three such residences in the multiple resource area. It also reflects the wealth and community standing of DeLong, a prominent merchant and village trustee and president.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 84003261, listed September 29, 1984. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence high).
Key facts
| Address | 348 Glen St., Glens Falls |
|---|---|
| County | Warren County |
| Listed | September 29, 1984 |
| Reference number | 84003261 |
| Resource type | Building |
| Architect / builder | Architect: attributed to Marcus F. Cummings; builder unknown, possibly Hiram Krum |
| Architectural style | Transitional Italianate-Second Empire |
| Areas of significance | Architecture |
| Level of significance | Local |
| Status (as stated in the nomination) | Maintained as an historic house museum with museum offices by the Glens Falls-Queensbury Historical Association; the interior remains substantially intact. |
| Acreage | 0.9 |
| Coordinates | 43.31117, -73.63616 (NPS GIS) |
What listing means for this property
National Register listing is honorary for a privately owned home: it does not by itself restrict what an owner may do with their own money, and it does not require public access. Restrictions come from local landmark or historic-district ordinances, which are separate (how they differ).
Owner-occupied houses are not eligible for the 20% federal rehabilitation tax credit, which applies to income-producing buildings, but many states offer credits for homeowners. Listing also opens the door to preservation easements and to buying a plaque. Start with what listing means for homeowners, renovating a listed house and selling one.
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 84003261.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q8074246
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.